Sizing a whole-house generator?
My wife and I are breaking ground on a new home next month and we've decided that, as we aren't getting any younger, we like the idea of the security of a whole-house generator. Even though I see Generacs everywhere, from what little research I've done so far, I'm leaning more towards Kohler. Our home will be approximately 3,700 square feet and will be heated via NG with a NG water heater. Any generator we install would also run on NG. We're concerned more with snow load and ice storms and losing power in the winter. Losing power during the summer to a thunderstorm or something similar is also an inconvenience, but not nearly as drastic as losing power in the middle of winter. Even though it is technically a "whole-house" generator, we don't intend to run every single thing in the house or have every single light on in the middle of an emergency. We would plan on manually turning off lights and devices we don't need. We're focusing on staying relatively comfortable with a normal amount of light where it is needed and a normal amount of entertainment, computer, TVs, Internet, etc. Nothing too crazy. We don't plan to be doing laundry during a power outage. I'm trying to get an idea what size we should be considering for our home. The most common Kohler residential units seem to be 26, 20, and 14kW. I was leaning towards a 26kW unit, but didn't want to assume that we would need one quite that large. We're not adding this to an existing home, so it's not really possible to do any sort of load study like you might do on an existing property.
Opinions on the size we should consider?
Thanks.